Antenna



FIG. 1 is a front elevational view of an antenna showing my new design, the rear, right, and left elevational views being identical thereto;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view of another embodiment of an antenna showing my new design, the rear, right, and left elevational views being identical thereto;

FIG. 7 is a top perspective view thereof;

FIG. 8 is a bottom perspective view thereof;

FIG. 9 is a top plan view thereof; and,

FIG. 10 is a bottom plan view thereof. 

CLAIM The ornamental design for a antenna, as shown and described. 